johnbuz
Guest
Hi
I have a weird fault that is driving me mad.
My engine is making a LOUD ticking noise, sounds like it is coming from the cam belt end of the engine.
I have replaced the following:
Cam shaft, hydraulic cam followers and injectors.
These have made absolutely no difference to the noise at all.
With the engine heald at about 1200RPM I have cracked the diesel feed to each injector in turn, this makes no difference to the noise. (This isolates the firing on each cylinder in turn)
So......doesn't seen to be cam based, doesn't seem to be piston problem.......engine drives completely normally, no performance issues.
It has started overheating recently, although i have drained the coolant out completely and I'm not convinced that I have all the air out yet.
Any ideas?![Help :help: :help:](/forums/styles/seatcupra/oldforumsmileys/help.gif)
John
PS injection timing checked with VAGCOM very slightly advanced, but well within green line on TDI timing graph, cam timing checked and spot on. Timing marks on flywheel and crankshaft cam belt pulley are in alinement, so no creap on cambelt pulley in relation to the crank.
Noise
I have a weird fault that is driving me mad.
My engine is making a LOUD ticking noise, sounds like it is coming from the cam belt end of the engine.
I have replaced the following:
Cam shaft, hydraulic cam followers and injectors.
These have made absolutely no difference to the noise at all.
With the engine heald at about 1200RPM I have cracked the diesel feed to each injector in turn, this makes no difference to the noise. (This isolates the firing on each cylinder in turn)
So......doesn't seen to be cam based, doesn't seem to be piston problem.......engine drives completely normally, no performance issues.
It has started overheating recently, although i have drained the coolant out completely and I'm not convinced that I have all the air out yet.
Any ideas?
![Help :help: :help:](/forums/styles/seatcupra/oldforumsmileys/help.gif)
John
PS injection timing checked with VAGCOM very slightly advanced, but well within green line on TDI timing graph, cam timing checked and spot on. Timing marks on flywheel and crankshaft cam belt pulley are in alinement, so no creap on cambelt pulley in relation to the crank.
Noise
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